Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Fix an FTS5 bug that could cause a prefix-query without a prefix-index on a database that contains delete-markers to return extra, non-matching, rows. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
840042cb2bed2924e2263f21887317f6 |
| User & Date: | dan 2017-04-21 16:04:18 |
Context
|
2017-04-21
| ||
| 17:03 | Remove a NEVER macro for a condition that may be true as of [a47efb7c]. Problem reported by OSSFuzz. (check-in: bdc50d8d user: dan tags: trunk) | |
| 16:04 | Fix an FTS5 bug that could cause a prefix-query without a prefix-index on a database that contains delete-markers to return extra, non-matching, rows. (check-in: 840042cb user: dan tags: trunk) | |
|
2017-04-19
| ||
| 13:25 | Further improvements to coverage of fts3 module. (check-in: 6b21d0fd user: dan tags: trunk) | |
Changes
Changes to ext/fts5/fts5_index.c.
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
....
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
|
static void fts5MultiIterNext2(
Fts5Index *p,
Fts5Iter *pIter,
int *pbNewTerm /* OUT: True if *might* be new term */
){
assert( pIter->bSkipEmpty );
if( p->rc==SQLITE_OK ){
do {
int iFirst = pIter->aFirst[1].iFirst;
Fts5SegIter *pSeg = &pIter->aSeg[iFirst];
int bNewTerm = 0;
assert( p->rc==SQLITE_OK );
pSeg->xNext(p, pSeg, &bNewTerm);
if( pSeg->pLeaf==0 || bNewTerm
|| fts5MultiIterAdvanceRowid(pIter, iFirst, &pSeg)
){
fts5MultiIterAdvanced(p, pIter, iFirst, 1);
fts5MultiIterSetEof(pIter);
*pbNewTerm = 1;
}else{
*pbNewTerm = 0;
}
fts5AssertMultiIterSetup(p, pIter);
}while( fts5MultiIterIsEmpty(p, pIter) );
}
}
................................................................................
}
static void fts5WriteFlushLeaf(Fts5Index *p, Fts5SegWriter *pWriter){
static const u8 zero[] = { 0x00, 0x00, 0x00, 0x00 };
Fts5PageWriter *pPage = &pWriter->writer;
i64 iRowid;
static int nCall = 0;
nCall++;
assert( (pPage->pgidx.n==0)==(pWriter->bFirstTermInPage) );
/* Set the szLeaf header field. */
assert( 0==fts5GetU16(&pPage->buf.p[2]) );
fts5PutU16(&pPage->buf.p[2], (u16)pPage->buf.n);
if( pWriter->bFirstTermInPage ){
|
>
|
<
<
<
<
<
|
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
....
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
|
static void fts5MultiIterNext2(
Fts5Index *p,
Fts5Iter *pIter,
int *pbNewTerm /* OUT: True if *might* be new term */
){
assert( pIter->bSkipEmpty );
if( p->rc==SQLITE_OK ){
*pbNewTerm = 0;
do{
int iFirst = pIter->aFirst[1].iFirst;
Fts5SegIter *pSeg = &pIter->aSeg[iFirst];
int bNewTerm = 0;
assert( p->rc==SQLITE_OK );
pSeg->xNext(p, pSeg, &bNewTerm);
if( pSeg->pLeaf==0 || bNewTerm
|| fts5MultiIterAdvanceRowid(pIter, iFirst, &pSeg)
){
fts5MultiIterAdvanced(p, pIter, iFirst, 1);
fts5MultiIterSetEof(pIter);
*pbNewTerm = 1;
}
fts5AssertMultiIterSetup(p, pIter);
}while( fts5MultiIterIsEmpty(p, pIter) );
}
}
................................................................................
}
static void fts5WriteFlushLeaf(Fts5Index *p, Fts5SegWriter *pWriter){
static const u8 zero[] = { 0x00, 0x00, 0x00, 0x00 };
Fts5PageWriter *pPage = &pWriter->writer;
i64 iRowid;
assert( (pPage->pgidx.n==0)==(pWriter->bFirstTermInPage) );
/* Set the szLeaf header field. */
assert( 0==fts5GetU16(&pPage->buf.p[2]) );
fts5PutU16(&pPage->buf.p[2], (u16)pPage->buf.n);
if( pWriter->bFirstTermInPage ){
|
Changes to ext/fts5/test/fts5aa.test.
572 573 574 575 576 577 578 579 580 581 582 583 584 585 |
do_execsql_test 21.1 {
BEGIN;
INSERT INTO ft VALUES('a b c');
DROP TABLE t8;
COMMIT;
}
}
finish_test
|
> > > > > > > > > > > > > > |
572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 |
do_execsql_test 21.1 {
BEGIN;
INSERT INTO ft VALUES('a b c');
DROP TABLE t8;
COMMIT;
}
do_execsql_test 22.0 {
CREATE VIRTUAL TABLE t9 USING fts5(x, detail=%DETAIL%);
INSERT INTO t9(rowid, x) VALUES(2, 'bbb');
BEGIN;
INSERT INTO t9(rowid, x) VALUES(1, 'aaa');
DELETE FROM t9 WHERE rowid = 2;
INSERT INTO t9(rowid, x) VALUES(3, 'bbb');
COMMIT;
}
do_execsql_test 22.1 {
SELECT rowid FROM t9('a*')
} {1}
}
finish_test
|